Originated in the small town of Buellton, CA by some boys making their own "gang" making fun of the WestSide Bloods.
To show you are in the "gang" u write a VL on the skin inbetween the thumb and pointer finger on the left hand. (V and L are made into one symbol. The end of the "v" connects with the top of the "L")

Max: IM part of the WSVL
Alex: Whats that?
Max: The gang. Duh. West Side Vagina Lips.